Typographical machine



May 2, 1933. R. R. MEAD TYPOGRAPHIGAL MACHINE Filed July 21, 1951 mismas may a Het@ REUHPAD Elim, 0F QUEENS VILLAGE, NEW YUM, ASSXGNOR T0 ELTEPIGEN'LWALER ELENDTYHPE COMPANY, A UOPRATIUN OF NEW QRK i TYPGRPHICAL MACHNE application tiled July 21 'lhis invention relates to typographical machines, such as linotype machines of the general organization represented in Letters atent of the United States to Mergenthaler, No. 436,582, wherein matrices, stored end to end in a'channeled magazine, are released therefrom by suitably actuated escapement devices and then composed slde by side in line. After composition, the matrix l@ line is transferred vto the face of a slotted mold, the mold filled with moltenv metal to form a slug or linotype against the matrices which produce the type characters thereon, and the matricesthereafter returned by a distributing mechanism to the magazine from which they started. l

The magazines as now used in the commercial linotype machines (especially those of full size), being made largely of brass, are

2@ quite heavy and 'dillicult to handle in their of storage.

application to and removal from the machine, imposing a rather severe burden upon the operator inJ carrying the magazines back and forth between the machine and their place Not only that, the operator is liable to drop the magazines in handling and thus cause serious damage to the magazines themselves or to other 'parts of the machine. The present invention4 aims to facilitate the handling of the magazines by materially ness to'prevent distortion, sufficient hardness to resist the wear of ing through the guiding channels, and the capability of being readily machined `in the formation of the matrix guiding channels. In the-accompanying drawing: i Fig. 1 is a top pla-n view of a magazine constructed in accordance with the present invention, the upper plate being broken away to expose the interior construction;

Fig. 2 is 'an enlarged longitudinal broke the matrices in pass-- 1931. Serial No. 552,129.

section through the magazine taken on the line 2-2'o ig.` l; and f Fig. 3 is an enlarged transverse cross section taken on the line 3 3 oa-Fig. 2.I

ln the preferred embodiment illustrated, the magazine structure (of the so-called Model 5 type), consists oil a top side plate l, a bottom side plate 2, and longitudinally extending side bars 3, the space between the side plates'thus being closed at the opposite edges of the magazine but open at the opposite. ends thereof to permit the passage of the matrices therethrough, in a manner tamiliarnto those skilled `in the art.

On their inner faces, the side plates l and 2 are formed with opposed longitudinally extending grooves ll, wherein the customaryY projecting ears of' the matrices engage and whereby the matrices are guided in their'` passage through the magazine. @n its underside, the lower plate 2 is provided with a number of cross bars, one 5 near the upper end of the magazine, one 6 near the lower end Y thereof, and three intermediate'ones 7, 8 and 9, which several bars are fastened to the magazine structure by means of bolts l0 passing through the upper plate l, the side bars J3, the lower plate 2, and the cross bars themselves (see Fig. l) .se The cross bar 9 is extended at its opposite ends beyond the side edges of the magazine to serve as a support forv the magazine in applying it to or removing it from the machine, all as well understood in the art. A longitudinal central bar l1 is fixed to the transverse bars to aid in guiding themagazine to and from its seat in the machine.

. At its lower extremity, the magazine strucl2 and 13 for the mounting of a matrix locking device and the matrix releasing escapements, but such devices are not illustrated herein, since they form no part of the present invention.

In accordance with the present'invention, the top andbottom side plates 1 and 2 of the magazine are made (instead of brass or steel asheretofore) of an aluminum alloy possessing characteristics which peculiarly adapt it for use in a magazine structure. After trials of many different aluminum alloys, it has been found that an alloy -consisting of the following ingredients is best suited for the urpOSe I p Percent Magnesium The top and bottom magazine plates constructed of this particular aluminum alloy possess the necessary stiffness to prevent dis- `tortion; are hard enough to resist wear from the matrices in passing therethrough, and in practice have been found to remain free from the formation of a black gummy substance which frequently results from the friction of brass (of which the matrices are composed) on aluminum. Moreover, plates constructed of such alloy are readily machineable, i. e., the grooved channels for thematrices may be readily cut in the plates and require no finishing after the milling operation, being smooth enough from that operation alone to permit easy sliding of the matrices. n

The use of such an aluminum alloy for the main parts of the magazine, viz, the top and bottom side plates,I results in a very material reduction in the weight of the magazine structure. due to the comparatively lightweight of aluminum in contrast with other metals, such as brass and steel.

In order to impart the necessary strength and stiffness to the magazine structure as a whole notwithstandingthe use of the lighter metal for the upper and lower plates, the side bars 3 and the cross bars 5, 6, 7, 8 and 9 on the underside of the bottom plate 2 (and if desired the longitudinal bar 1l as well) are madeof steel, and to prevent any electrolytic action which might result from the contact of steel with aluminum, it is proposed before assemblage to coat these steel parts with an aluminum paint or to subject them to the well known Parkerizing process, either process being effective for the purpose.

Having thus described my invention, what I claim is 1. A matrix magazine comprising a pair of side plates formed of an alloy of aluminum and grooved in their adjacent faces to form guiding channels for the matrices, and

side bars fastened between and spacing said plates and formed of steel.

2. A matrix magazine including a pair of side plates formed of an alloy of aluminum and grooved in their adjacent faces to form guiding channels for the matrices, and cross bars of steel fastened to the outer face of one of the side plates.

3. A matrix magazine including a pair of side plates formed of an alloy of aluminum and grooved in their adjacent faces to form guiding channels for the matrices, said alloy possessing suliicient stiffness to prevent distortion and suiiicient hardness to resist wear from the matrices, and being free from the formation of foreign substances in the frictional engagement of the matrices therewith.

4. A matrix magazine including a pair of side plates formed of an alloy consisting of aluminum, magnesium, manganese, silicon and copper, said plates being grooved in their adjacent faces to constitute guiding channels for the matrices.

5. A matrix magazine including a pair of side plates formed of an alloy consisting of aluminum, magnesium, and copper in substantially the proportions specified, said plates being grooved in their adjacent faces to constitute guiding channels for the matrices.

l6. A matrix magazine including a pair of side plates formed of an alloy consisting of 94.4% of aluminum, .6% ofmagnesium, .5% of manganese, .5% of silicon and 4% of copper, said plates being grooved in their\ad jacent faces to form guiding channels for the matrices.

7. A Imatrix magazine according to claim 2, characterized by the fact that the steel bar or bars therein referred to are treated before assemblage to prevent electrolytic action between them and the aluminum side plates. I

8. A matrix magazine according to claim 2, characterized by the fact that the steel bar or bars therein referredto are treated before assemblage to prevent electrolytic action between them and the aluminumside plates.

In testimony whereof, this specification has -been duly signed by:

RICHARD R. MEAD.

manganese, silicon v 7, tm the number "2" read "l"; and that t Ctmtttttnttrh @Ftztmhtctmm Patent No. It,96,992. Mag/ 2, @33

RHCHARD R, MEAD.,

t is hereby certited that error appats in the prx'mted spectiattmm @if th above numbered patent requiring correction as follows: Page 2, Htte 96, @Hiam he -sait Letters Patent shout@ he read with this eorrecttm therein that the same may conform to the remt@ @if the case in the Patent mte.,

Sgnd and sealed th 39th-day @t May, A. D, 1933..

hh E., Mmm I Acting' Commissioner mit Patents,

Swat) 

